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INITIAL SETTING
SW2_2
The communication
~
address of first indoor
SW2_8
unit address
3. Code setting for changing the control methods of connection kit:
1 is ON, 0 is OFF.
SW1_1
Control methods
SW1_2
SW1_3
Reserved
SW1_4
Anti-cold
Air Function
Notes:
Plan A: Controlling capability by 0-10V signal.
Simple DDC Voltage Range(V)
0~1.0
1.1~1.5
1.6~2.5
2.6~3.5
3.6~4.5
4.6~5.5
5.6~6.5
6.6~7.5
7.6~8.5
8.6~9.6
9.6~10
a) If the DDC can provide 0-10V, mode and on/off signals to Haier AHU kit, the wired controller does not need to be
connected. If only 0-10V signal, the wired controller is necessary.
b) If Haier wired controller is connected into the system, the wired controller has the top priority. As a result, if the wired
controller is set into off status, signals from DDC to Haier AHU kit will be invalid. When the wired controller is turned on,
first to adjust operation mode and then the 3rd party AHU units can be controlled by 0-10V signal from DDC to Haier
AHU kit adjusting the outdoor unit capacity. This is accomplished by varying the indoor unit's target superheat in cool
mode or target sub-cooling in heat mode. The change in target superheat or subcooling will cause the AHU Kit's EEV to
open, increasing capacity, or to close, decreasing capacity. The compressor will then speed up or slow down as required
to match the load change.
c) On/Off control by dry contact, temperature control by Haier controller. If the wired controller is connected, wired
controller can control the 3rd party AHU fan motor. Or Haier AHU kit PCB provides fan speed dry contact signal to DDC
or to AHU unit PCB directly. If users want to use wired controller to adjust fan speeds, set the wired controller according
to AHU fan motor grades and max. 3 fan speeds can be controllable.
d) Haier AHU kit can provide mode signal to DDC or AHU unit PCB directly to control the AHU unit, e.g. if the DDC or 3rd
party AHU unit PCB receives defrost signal from AHU kit, AHU fan motor will be controlled.
e) The maximum input range of voltage whitch is from DDC is 0-10v. If it exceeds 10V, input shall be 10V; if it is lower than
0V, input shall be 0V. The maximum input voltage shall not exceed 10V.
26
[2]
[3]
[4]
[5]
[6]
0
1
1
1
1
0
1
1
1
1
1
0
0
0
0
1
0
0
0
0
1
0
0
0
0
--- --- --- ---
--- ---
1
1
1
1
1
1
1
1
1
1
[1]
[2]
Control methods
0
0
Plan A
0
1
Plan B
1
0
Plan C
1
1
Plan D
/
/
0
Anti-cold Air Function Available
1
Anti-cold Air Function Unavailable
Output Capability
0% OFF
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
[7]
[8]
Communication address
1
0
62#
1
1
63#
0
0
0#
0
1
1#
1
0
2#
---
-----
1
0
62#
1
1
63#
Center controller address
62#
63#
64#
65#
66#
-----
126#
127#
31-5000593 Rev. 0
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